Far-infrared spectroscopy of syn-vinyl alcohol

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https://hdl.handle.net/2142/91082

Title: Far-infrared spectroscopy of syn-vinyl alcohol
Author(s): Raston, Paul
Contributor(s): Bunn, Hayley
Issue Date: 2016-06-24
Keyword(s): Synchrotron
Abstract: Vinyl alcohol has been extensively studied in both the microwave\footnote{S. Saito, Chem. Phys. Lett. 42, 3 (1976)}$^{,}$\footnote{M. Rodler et al., J. Am. Chem. Soc. 106, 4029 (1948)} and mid-IR\footnote{Y. Koga et al., J. Mol. Spec. 145, 315 (1991)}$^{,}$\footnote{D-L. Joo et al., J. Mol. Spec. 197, 68 (1999)} spectral regions, where 9 out of 15 vibrational modes have been identified. Here we present the first far-IR spectrum of vinyl alcohol, collected below 700 \wn at the Australian Synchrotron. The high resolution (0.001 \wn) spectrum reveals the \nub{11} and \nub{15} fundamentals of syn-vinyl alcohol at 489 \wn and 407 \wn, in addition to two hot bands of the \nub{15} mode at 369 \wn and 323 \wn. High \textit{J} transitions in the R-branch of the \nub{15} band were found to be perturbed by an \textit{a}-axis Coriolis interaction with the nearby \nub{11} state. The \nub{15} torsional mode of \textit{syn}-vinyl alcohol was fit using a Watson's A-reduced Hamiltonian to yield rotational, centrifugal distortion, and Coriolis coupling parameters.
Publisher: International Symposium on Molecular Spectroscopy
Type of Resource: text
Language: En
Permalink: http://hdl.handle.net/2142/91082